CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
CURRENT ASSETS:
Cash and cash equivalents	$ 631,314	$ 388,570
Restricted cash	0	731,206
Investments—short-term	124,150	199,645
Receivables, net	459,090	334,025
Inventory	261,098	196,625
Prepaid expenses and other current assets	105,086	79,090
Total current assets	1,580,738	1,929,161
PROPERTY, PLANT AND EQUIPMENT, NET	215,023	221,722
INVESTMENTS—LONG-TERM	32,110	145
RIGHT-OF-USE ASSETS	79,728	77,209
INTANGIBLE ASSETS, NET	1,741,758	815
GOODWILL	592,519	83,027
DEFERRED TAX ASSETS	120,771	125,815
OTHER ASSETS	72,876	49,099
TOTAL ASSETS	4,435,523	2,486,993
CURRENT LIABILITIES:
Accounts payable and accrued expenses	294,437	289,565
Accrued sales discounts, allowances and reserves	323,406	247,126
Operating lease liabilities—short-term	7,590	6,746
Current portion of long-term debt	26,500	0
Total current liabilities	651,933	543,437
OPERATING LEASE LIABILITIES—LONG-TERM	65,760	63,253
CONTINGENT CONSIDERATION	136,922	0
LONG-TERM DEBT	1,471,231	0
DEFERRED TAX LIABILITIES	177,206	0
OTHER LONG-TERM LIABILITIES	67,750	61,008
Total liabilities	2,570,802	667,698
COMMITMENTS AND CONTINGENT LIABILITIES (Note 18)
SHAREHOLDERS’ EQUITY:
Preferred shares, par value, $0.01 per share: 50,000,000 shares authorized; and zero issued and outstanding at September 30, 2026 and December 31, 2025, respectively.
Ordinary shares, par value, $0.01 per share; 450,000,000 shares authorized; 185,203,061 and 181,011,166 shares issued; and 168,029,896 and 165,607,028 shares outstanding at September 30, 2026 and December 31, 2025, respectively	1,852	1,810
Treasury shares, at cost (17,173,165 and 15,404,138 shares at September 30, 2026 and December 31, 2025, respectively)	(503,194)	(450,287)
Additional paid-in capital	3,153,839	3,004,666
Accumulated other comprehensive loss	(3,290)	(2,100)
Accumulated deficit	(784,486)	(734,794)
Total shareholders’ equity	1,864,721	1,819,295
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 4,435,523	$ 2,486,993

Carrying value as of the balance sheet date of obligations relating to sales discounts, allowances and reserves.

No definition available.

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Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.